Evie is overjoyed when she is given her very own puppy, Alfie. Alfie adores Evie - he loves to be cuddled, sleeps on her bed and welcomes her home from school every day with a wag of his tail. But it's not long before another new member of the family arrives: Evie's baby brother, San. Suddenly no-one has much time to look after Alfie, let alone play with him and take him for walks, and soon he finds himself unwanted and all alone.